云岗矿的优秀区队干部──于坤于坤同志自１９７３年到云岗矿工作至今，一直从事井下掘进工作。先后担任过电工、机组司机、组长、工长和副队长，１９８９年担任队长。他坚持依靠科技、依靠群众，始终以一个党员干部的高标准严格要求自已，团结同志，顾全大局，无私奉献，... Yungang’s excellent district team cadre, Yu Kun, has been working in underground mining since 1973 when he went to Yungang mine. He successively served as electrician, crew driver, team leader, foreman and deputy leader, and served as captain in 1989. He persisted in relying on science and technology, relying on the masses, and always rigorously demanding himself with a high standard of party members and cadres, uniting comrades, taking care of the overall situation, selfless devotion,...